20310999996 has 72 divisors (see below), whose sum is σ = 55157402496. Its totient is φ = 5800243680.

The previous prime is 20310999979. The next prime is 20310999997. The reversal of 20310999996 is 69999901302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310999997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1351395 + ... + 1366341.

Almost surely, 2^20310999996 is an apocalyptic number.

It is an amenable number.

20310999996 is an abundant number, since it is smaller than the sum of its proper divisors (34846402500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20310999996 is a wasteful number, since it uses less digits than its factorization.

20310999996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17279 (or 17270 counting only the distinct ones).

The product of its (nonzero) digits is 2125764, while the sum is 57.

It can be divided in two parts, 20310 and 999996, that added together give a triangular number (1020306 = T₁₄₂₈).

The spelling of 20310999996 in words is "twenty billion, three hundred ten million, nine hundred ninety-nine thousand, nine hundred ninety-six".